public class EstimateSketchUDF
extends org.apache.hadoop.hive.ql.exec.UDF
Constructor and Description |
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EstimateSketchUDF() |
Modifier and Type | Method and Description |
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Double |
evaluate(org.apache.hadoop.io.BytesWritable binarySketch)
Returns the estimate unique count of sketch.
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Double |
evaluate(org.apache.hadoop.io.BytesWritable binarySketch,
long seed)
Returns the estimate unique count of sketch.
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public Double evaluate(org.apache.hadoop.io.BytesWritable binarySketch)
binarySketch
- sketch to be estimated passed in as bytes writable.public Double evaluate(org.apache.hadoop.io.BytesWritable binarySketch, long seed)
binarySketch
- sketch to be estimated passed in as bytes writable.seed
- value used to build the sketch if different from the defaultCopyright © 2015–2019 The Apache Software Foundation. All rights reserved.